0
program MaxMin;

#include("stdlib.hhf")

static

    count: int32:=0;
    input: int32;
    maxVal: int32;
    minVal: int32;
    sum: int32:=0;
    boolVar : boolean:= true;

begin MaxMin;


while(boolVar) do

    stdout.put("Enter a number, 0 to stop:");
    stdin.get(input);
    
    if(input==0)then
        break;
    elseif(count == 0)then
        maxVal=input;
        minVal=input;
    elseif(input>maxVal)then
        maxVal=input;
    elseif(input<minVal)then
        minVal=input;
    endif;
    
    add(input,sum);
    add(1,count);
    
    
endwhile;

stdout.newln();

stdout.put("Total: ",sum,nl,"Count: ",count,nl,"Maximum: ",maxVal,nl,"Minimum: ",minVal,nl);


end MaxMin;
ggorlen
  • 44,755
  • 7
  • 76
  • 106
anthony elabed
  • 1
  • 1
  • I don't know this language, but perhaps there are other syntax errors that are confusing the compiler (os it assembler?). For example, should your assignment statements all be using `:=` like you do in the static constant section of your program? – Michael Welch Oct 19 '20 at 13:59

1 Answers1

0

ENVIRONMENT

  • HLA (High Level Assembler - HLABE back end, LD linker) Version 2.16 build 4409 (prototype)
  • Ubuntu 20.04.1

SOLUTION

  • The problem is maxVal=input; is an invalid statement in HLA. To correct this problem us the mov instruction as follows: mov(input, maxVal);.
  • However, after this correction you will see the following error:
Assembling "src.hla" to "src.o"
Error in file "src.hla" at line 27 [errid:102032/hlaparse.bsn]:
Memory to memory comparisons are illegal.
Near: << ) >>

hlaparse: oututils.c:2480: FreeOperand: Assertion `o->l.leftOperand != ((void *)0)' failed.
Aborted (core dumped)
  • This is because HLA does not support comparison between memory objects. One solution is to store the user entered number in EAX and change all occurrences of the input variable to EAX.

EXAMPLE

program MaxMin;
#include("stdlib.hhf")

storage
    maxVal: int32; 
    minVal: int32;

static
    count:   int32:=   0;
    sum:     int32:=   0;
    boolVar: boolean:= true;

begin MaxMin;
    while(boolVar) do
        stdout.put("Enter a number, 0 to stop: ");
        stdin.geti32();

        if (EAX = 0 ) then
            break;
        elseif ( count = 0 ) then
            mov(EAX, maxVal);
            mov(EAX, minVal);
        elseif (EAX > maxVal) then
            mov(EAX, maxVal);
        elseif (EAX < minVal) then
            mov(EAX, minVal);
        endif;
    
        add(EAX, sum);
        add(1, count);   
    endwhile;

    stdout.newln();
    stdout.put("Total: ",sum,nl,"Count: ",count,nl,"Maximum: ",maxVal,nl,"Minimum: ",minVal,nl);
end MaxMin;
Kuma
  • 427
  • 5
  • 17